<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>ios支付宝bug</title>
</head>
<body>
  <div style="height: 800px;">
    <p>在ios上10.1.55版本上打开此页面，点击输入框唤起系统键盘，然后关闭键盘，就会出现黑色区域</p>
    <input type="text">
  </div>
</body>
</html>